A method for receiving an aperiodic tracking reference signal and a terminal are provided. The method includes: receiving downlink control information, where the downlink control information includes information used for triggering an aperiodic tracking reference signal in a secondary cell; receiving the aperiodic tracking reference signal in the secondary cell based on the downlink control information; and if a validation condition of the aperiodic tracking reference signal is met, determining that the aperiodic tracking reference signal is valid, where the validation condition includes at least that a receiving moment of the aperiodic tracking reference signal is after completion of radio frequency retuning between the terminal and the secondary cell.
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2. The method for receiving an aperiodic tracking reference signal according to claim 1, wherein the validation condition further comprises that a receiving moment of the downlink control information is after a preset moment.
A method for receiving an aperiodic tracking reference signal in wireless communication systems addresses the challenge of efficiently managing downlink control information (DCI) and reference signal transmissions. The method ensures that a user equipment (UE) validates the reception of an aperiodic tracking reference signal only when specific conditions are met. One key condition is that the receiving moment of the downlink control information must occur after a preset moment. This timing constraint helps synchronize the UE's processing of the reference signal with the network's scheduling, reducing errors and improving tracking accuracy. The method may also involve additional validation steps, such as verifying the presence of specific fields or parameters in the DCI. By enforcing these conditions, the system ensures reliable tracking reference signal reception, enhancing overall communication performance in dynamic wireless environments. The approach is particularly useful in scenarios where precise timing and synchronization are critical, such as in high-mobility or high-frequency communication systems.
7. The terminal according to claim 6, wherein the validation condition further comprises that a receiving moment of the downlink control information is after a preset moment.
This invention relates to wireless communication terminals, specifically addressing the challenge of efficiently validating downlink control information (DCI) to ensure reliable communication. The terminal includes a receiver configured to obtain DCI from a base station and a processor that validates the DCI based on predefined conditions. One such condition is that the DCI must be received after a preset moment, ensuring synchronization and reducing errors in data transmission. The terminal may also include a transmitter for sending uplink control information (UCI) to the base station, which may be used to confirm successful DCI validation. The processor may further determine whether the DCI is valid by checking if it meets additional criteria, such as matching a predefined format or containing correct error-checking codes. By enforcing these validation rules, the terminal ensures that only properly formatted and timely DCI is processed, improving communication reliability in wireless networks. The invention is particularly useful in scenarios where precise timing and error-free control signaling are critical, such as in 5G and beyond networks.
12. The non-transitory computer-readable storage medium according to claim 11, wherein the validation condition further comprises that a receiving moment of the downlink control information is after a preset moment.
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November 6, 2020
November 22, 2022
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